二次光栅在波前测量中的应用
文献类型：期刊论文
| 作者 | 周素梅 ; 周常河 |
| 刊名 | 光学学报
 |
| 出版日期 | 2007 |
| 卷号 | 27期号:1页码:1 |
| 关键词 | 衍射与光栅 二次光栅 波前测量 泽尼克系数 diffraction and gratings quadratic grating wavefront measurement Zernike coefficient |
| ISSN号 | 0253-2239 |
| 其他题名 | Wavefront Measurement by Using Quadratic Grating |
| 中文摘要 | 采用一种特殊的二次光栅用于激光波前测量, 它对非零级衍射光束具有不同的聚焦效应, 其光栅线为圆弧型而非直线。导出了在会聚光束情况下的两平面成像在单一像平面上的距离关系, 实验上实现了二次光栅用于会聚光束的波前测量, 测量得到会聚光束具有较大的散焦(-2.93λ)和球差(1.34λ), 与该透镜引起波前的离焦像差理论理想值(-2.695λ)基本符合。该技术可以实现波前的高空间分辨力和高精度实时测量, 大大减少光学元件数量, 降低装置成本。由于大功率激光束的不稳定性, 其波前变化非常快, 所以该方法的实时性非; A laser wavefront measurement technique by using a special quadratic grating is reported. The quadratic grating has a different focusing power in nonzero orders, for the grating lines are not line but arcs of circles, and multiple planes can be imaged onto a single image plane. The spacing relation between two planes imaged on a single plane was deduced for a convergent beam. The experiments of measuring convergent beam wavefront with a quadratic grating are carried out. It is found that the defocusing aberration is as large as -2.93λ and the spherical aberration is equal to 1.34λ, which are in good agreement with theoretical ones(the defocusing aberration is -2.695λ, λ supposed to be wavelength). This technology can realize real-time wavefront measurement with high spatial resolution, high phase accuracy, low cost and simple structure. Because wavefront of high-energy laser beam usually changes rapidly, this real-time technology is a useful measurement method on this application. |
| 学科主题 | 光栅 |
| 分类号 | TB96 |
| 收录类别 | ei |
| 语种 | 中文 |
| 公开日期 | 2009-09-18 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/1442]  |
| 专题 | 上海光学精密机械研究所_信息光学开放实验室 |
| 推荐引用方式 GB/T 7714 | 周素梅,周常河. 二次光栅在波前测量中的应用[J]. 光学学报,2007,27(1):1, 4. |
| APA | 周素梅,&周常河.(2007).二次光栅在波前测量中的应用.光学学报,27(1),1. |
| MLA | 周素梅,et al."二次光栅在波前测量中的应用".光学学报 27.1(2007):1. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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